Free Shipping Over $99
Eaton / Cutler-Hammer LA3250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
LA3250
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
LA3250
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer LA3250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
300A 3 Pole Molded Case Circuit Breaker
200A 3 Pole Molded Case Circuit Breaker
175A 3 Pole Molded Case Circuit Breaker
Description
Built to handle demanding commercial loads, the Eaton LA3250 is a 250A, 3-phase molded case circuit breaker. It utilizes a proven thermal-magnetic mechanism to defend industrial distribution systems against overloads. This bolt-on breaker is engineered to fit into older Westinghouse PRL4 panelboards and motor control centers. While the original LA series is a legacy product, it can be substituted with the newer Series C LD3250. It offers an interrupting rating of 30 kAIC at 480V.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | LA3250-R |
| Series | LA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse PRL4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
6 answersIs the Eaton LA3250 still being manufactured?
No, the LA3250 is an obsolete legacy L-Frame circuit breaker originally manufactured by Westinghouse and later by Cutler-Hammer and Eaton. Exact drop-in replacements are sourced to maintain existing equipment without requiring retrofit adapters.
Are Westinghouse, Cutler-Hammer, and Eaton LA3250 breakers interchangeable?
Yes. Eaton acquired the Westinghouse electrical distribution line, meaning LA3250 breakers branded under Westinghouse, Cutler-Hammer, or Eaton share the same physical footprint and electrical characteristics and can be used interchangeably.
What equipment is the LA3250 circuit breaker designed to fit?
This bolt-on L-Frame breaker is engineered specifically for legacy Westinghouse and Cutler-Hammer PRL4 panelboards, switchboards, and motor control centers.
What wire sizes are supported by the standard lugs on the LA3250?
The terminal lugs accept either aluminum or copper conductors ranging from 4 AWG to 350 kcmil. Ensure proper torque specifications are followed during installation for secure connections.
How does the trip adjustability work on the LA3250?
This breaker is equipped with a thermal-magnetic trip unit that provides a fixed thermal setting for long-time overload protection and an adjustable magnetic dial to fine-tune the instantaneous short-circuit response.
Does the standard LA3250 trip unit include ground fault protection?
No, the standard LI (Long-Time, Instantaneous) thermal-magnetic trip unit provides protection against overloads and short circuits only. It does not include built-in equipment ground fault protection.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
Total 5 star reviews: 13 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Rating
13 reviews
- RGRobert G.Verified BuyerReviewingSquare D LA36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26LA36400
Perfectly boxed and arrived on time. Thanks for the shirt and stickers as well.
- CECraig E.Verified BuyerReviewingEaton / Cutler-Hammer LA3600 - 600A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/13/25Westinghouse breaker
Excellent customer service and quick shipping
- CLClifton L.Verified BuyerReviewingSquare D LA36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/30/25estimator
Good
- BCBenjamin C.Verified BuyerReviewingEaton / Cutler-Hammer LA3225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Refurbished Breaker
Breaker seems to be working great, no complaints from Client
- JMJerry M.ReviewingEaton / Cutler-Hammer LA3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/14/23Where is my breaker?
Where is my breaker?